Intelligent door lock with display function

Abstract

The utility model provides a kind of intelligent door lock with display function, including the front cover of being located in the side of door and the rear cover of being located in the other side of door, be provided with lock cylinder for inserting key on front cover, square shaft is rotatably arranged on lock cylinder, display intelligent unlocking module for driving lock cylinder rotation is further provided on front cover, rotating disc, rear pivot, rotating plate is provided on rear pivot, bolt tongue.Intelligent door lock with display function according to the utility model, not only can satisfy the basic function of door lock, but also can avoid because lock catch plate occurs deformation to thereby influence the smooth retraction of bolt tongue, so that door lock has stronger applicability.

Description

Technical Field

[0001] This utility model belongs to the field of door lock technology, and specifically relates to an intelligent door lock with display function. Background Technology

[0002] Smart locks are locks that are more intelligent in terms of user identification, security, and management, unlike traditional mechanical locks. Smart locks are the locking components in access control systems.

[0003] While existing smart door locks with display functions can meet people's basic needs, the lock tongue usually works in conjunction with a strike plate on the side of the door frame. When the door is closed, the strike plate is used to hold the lock tongue, thus achieving the locking function. In situations such as earthquakes that cause deformation of the strike plate, the lock tongue can easily get stuck in the strike plate, preventing it from disengaging smoothly and quickly and allowing users to open the door. This causes considerable inconvenience to users, limits the scope of application, and cannot fully meet people's needs. Utility Model Content

[0004] In view of this, this utility model addresses the shortcomings of the prior art by providing an intelligent door lock with a display function. It not only meets the basic functions of a door lock but also avoids the impact of deformation of the strike plate on the smooth retraction of the bolt, thus making the door lock more versatile.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a smart door lock with display function, including a front cover located on one side of the door and a rear cover located on the other side of the door. The front cover is provided with a lock cylinder for inserting a key. A square shaft is rotatably provided on the lock cylinder. The front cover is also provided with a display smart unlocking module for driving the lock cylinder to rotate. The rear cover is rotatably provided with a rotating disk connected to the square shaft. A rear rotating shaft is provided at the rear end of the square shaft. A rotating plate is provided on the rear rotating shaft. A lock tongue is provided on the rear side of the rotating disk. A fastening bolt is provided on the rotating disk, passing through the rotating plate and threaded through the lock tongue. A fastening nut is provided on the outside of the lock tongue and threaded with the fastening bolt. A second support cylinder is provided between the rotating disk and the rotating plate, sleeved on the outside of the fastening bolt. A check module is also provided on the rear cover 102 to prevent the lock cylinder from rotating on its own.

[0006] As a further improvement of this utility model, the intelligent unlocking module includes a rotating wheel rotatably mounted on the front cover and connected to the lock cylinder. The front cover is provided with a first display screen capable of displaying an unlocking QR code. The front cover also contains a communication module and a controller electrically connected to the first display screen. The side end of the lock cylinder is provided with a locking hole. The front cover is provided with a telescopic push rod electrically connected to the controller. The output shaft of the telescopic push rod can be inserted into the unlocking locking hole and the locking locking hole. The lock cylinder is also provided with a pressure sensor for sensing whether the key is inserted and electrically connected to the controller. The lock cylinder is also provided with a position sensor electrically connected to the controller.

[0007] As a further improvement of this utility model, the intelligent unlocking module also includes a password input module disposed on the front cover, which is electrically connected to the controller.

[0008] As a further improvement of this utility model, the anti-return module includes an anti-return bolt slidably connected to the rear cover, a shift finger connected to the square shaft on the rotating disk, the ends of the anti-return bolt and the shift finger being arc-shaped, a first connecting post near the rotating disk and a second connecting post away from the rotating disk on the rear cover, a connecting sliding hole slidably sleeved on the outside of the first and second connecting posts on the anti-return bolt, a limiting bolt for preventing the anti-return bolt from falling off on the first connecting post, and a connecting spring between the first connecting post and the side of the connecting sliding hole near the rotating disk.

[0009] As a further improvement of this utility model, a power module is also provided on the back cover, and the power module is electrically connected to the first phase adapter, the second display screen, the controller and the telescopic push rod.

[0010] As a further improvement of this utility model, a second display screen for displaying the power status is also provided on the front cover. The second display screen is electrically connected to the controller. The second display screen can display the power status, allowing users to know the door lock's power level in a timely manner and avoid the inability to unlock due to insufficient power.

[0011] As a further improvement of this utility model, a U-shaped pressure plate is provided in the rear cover through the first support cylinder, and a connecting bolt passing through the door and the U-shaped pressure plate is also provided on the front cover. A connecting nut that is screwed to the connecting bolt is provided on the U-shaped pressure plate.

[0012] As a further improvement of this utility model, a fixing bolt is provided on the lock tongue, which passes through the rotating plate and is connected to the rotating disk.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] Firstly, by locking the door directly against the outside of the door frame, the door can be pulled and locked, making it impossible to pull. The door will also be unable to be pushed due to the door frame, thus avoiding the problem of the bolt retracting smoothly due to the deformation of the strike plate. This improves the applicability and reliability of the door lock, making it better suited for extreme environments.

[0015] Secondly, through the first display screen, communication module and controller, convenient smart unlocking can be achieved by displaying the unlocking QR code.

[0016] Thirdly, the design of anti-reverse bolts and connecting springs effectively prevents the dial finger from rotating on its own, thus enhancing the security of the door lock. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the lock cylinder, locking hole, and position sensor of this utility model;

[0021] Figure 4 This is a schematic diagram of the check valve module of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the first connecting post, the second connecting post, the connecting sliding hole, and the connecting spring of this utility model.

[0023] In the diagram: 101, front cover; 102, rear cover; 103, lock cylinder; 104, square shaft; 105, rotating disc; 106, rotating plate; 107, lock tongue; 108, fastening bolt; 109, second support cylinder; 110, U-shaped pressure plate; 111, connecting bolt; 112, connecting nut; 113, first support cylinder; 114, fixing bolt; 115, fastening nut; 116, rear rotating shaft; 201, rotating wheel; 202, first display screen; 203, locking hole; 204, telescopic push rod; 205, second display screen; 206, password input module; 207, position sensor; 301, anti-reverse bolt; 302, shift finger; 303, first connecting post; 304, second connecting post; 305, connecting slide hole; 306, limit bolt; 307, connecting spring; 401, power module. Detailed Implementation

[0024] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0025] like Figure 1 , 2 As shown in Figure 3, a smart door lock with a display function includes a front cover 101 screwed to one side of the door and a rear cover 102 screwed to the other side of the door. The front cover 101 has a lock cylinder 103 for inserting a key, and a square shaft 104 is rotatably mounted on the lock cylinder 103. The front cover 101 also has a display smart unlocking module for driving the lock cylinder 103 to rotate. The rear cover 102 has a rotating disk 105 rotatably mounted and connected to the square shaft 104. A rear rotating shaft 116 is located at the rear end of the square shaft 104. A rotating plate 106 is provided on the rotating shaft 116, and a locking tongue 107 is provided on the rear side of the rotating disk 105. A fastening bolt 108 is provided on the rotating disk 105, which passes through the rotating plate 106 and is threaded through the locking tongue 107. A fastening nut 115 is provided on the outside of the locking tongue 107 and is threaded through the fastening bolt 108. A second support cylinder 109 is provided between the rotating disk 105 and the rotating plate 106 and is sleeved on the outside of the fastening bolt 108. A check module is provided on the rear cover (102) to prevent the lock cylinder 103 from rotating on its own.

[0026] A U-shaped pressure plate 110 is provided in the rear cover 102 via the first support cylinder 113. A connecting bolt 111 passing through the door and the U-shaped pressure plate 110 is also provided on the front cover 101. A connecting nut 112, screwed onto the U-shaped pressure plate 110, is provided on the U-shaped pressure plate 110. The distance between the cover and the U-shaped pressure plate 110 can be adjusted by the connection length of the connecting nut 112 relative to the connecting bolt 111, thus accommodating door locks of different thicknesses. A fixing bolt 114 passing through the rotating plate 106 and connected to the rotating disk 105 is provided on the latch 107.

[0027] The door is hinged to the door frame, and the door frame limits the door so that it cannot be pushed toward the side near the latch 107.

[0028] Afterwards, when the user closes the door, the door will be unable to be pushed or opened further towards the bolt 107 due to the obstruction of the door frame. Then, the lock cylinder 103 can be driven to rotate by the key or the smart unlocking module, thereby causing the square shaft 104, rotating disk 105, rotating plate 106 and bolt 107 to rotate. The lock will rotate from a state of being misaligned with the door frame to a state of being against the side of the door frame, so that the bolt 107 and the door cannot be pulled. Since the door cannot be pushed or pulled at this time, the door is locked.

[0029] When the door needs to be opened, the lock cylinder 103 is driven to rotate by the key or the smart unlocking module, which in turn drives the square shaft 104, rotating disc 105, rotating plate 106 and bolt 107 to rotate. The lock will rotate from a state of contact with the side of the door frame to a state of misalignment with the door frame, releasing the latch 107 from the door frame and allowing the door to be pushed. Then the door can be pulled open.

[0030] Furthermore, after the latch 107 rotates to a state of misalignment with the door frame, the anti-return module can prevent the lock cylinder 103 from rotating automatically, thereby preventing the rotating disc 105 and the latch 107 from rotating autonomously and preventing the latch 107 from re-engaging with the door frame autonomously.

[0031] like Figure 2 , 3 As shown, the intelligent unlocking module includes a rotating wheel 201 rotatably mounted on the front cover 101 and connected to the lock cylinder 103. The front cover 101 is equipped with a first display screen 202 capable of displaying an unlocking QR code. The front cover 101 also contains a communication module and a controller electrically connected to the first display screen 202. The side end of the lock cylinder 103 is provided with a locking hole 203. The front cover 101 is equipped with a telescopic push rod 204 electrically connected to the controller. The output shaft of the telescopic push rod 204 can be inserted into the locking hole 203. The lock cylinder 103 is also equipped with a pressure sensor for sensing whether the key is inserted and electrically connected to the controller. The lock cylinder 103 is also equipped with a position sensor 207 electrically connected to the controller.

[0032] To save electricity, a pressure switch or proximity switch can be installed on the first display screen 202 so that the first display screen 202 only lights up when someone approaches.

[0033] When the user inserts the key into the lock cylinder 103, it presses against the pressure sensor, which then sends a signal to the controller. The controller then drives the output shaft of the telescopic push rod 204 to shorten by a certain length, thereby separating it from the locking hole 203 and releasing the rotation limit on the lock cylinder 103. This allows the user to then drive the lock cylinder 103 and the rotating wheel 201 to rotate using the key, preventing the rotation limit of the rotating wheel 201 from affecting the key's rotation drive of the lock cylinder 103.

[0034] After the user scans the QR code on the first display with their mobile phone and enters the command to open the door, the controller receives the command through the communication module and drives the output shaft of the telescopic push rod 204 to shorten by a certain length, thereby separating it from the locking hole 203 and releasing the rotation limit on the lock cylinder 103. Then, the rotating wheel 201 can be rotated, driving the lock cylinder 103 and the square shaft 104 to rotate, thereby driving the bolt 107 to rotate to a state of misalignment with the door frame, and then the door can be opened.

[0035] During the locking process, the lock cylinder 103 and square shaft 104 are rotated and reset by the key or the wheel 201, so that the locking hole 203 on the lock cylinder 103 corresponds to the output shaft of the telescopic push rod 204. After the key is removed, the pressure sensor detects the disappearance of the key, and the position sensor 207 detects that the lock cylinder 103 has reset to the position corresponding to the output shaft of the telescopic push rod 204. Then, the pressure sensor and the position sensor 207 will send a signal to the controller again. The controller will control the output shaft of the telescopic push rod 204 to extend a certain length and insert it into the locking hole 203 to limit the rotation of the lock cylinder 103, preventing others from arbitrarily rotating the wheel 201, lock cylinder 103, square shaft 104, rotating disk 105 and bolt 107, and then opening the door.

[0036] According to another embodiment of the present invention, such as Figure 1 As shown, the intelligent unlocking module also includes a password input module 206 mounted on the front cover 101, which is electrically connected to the controller. After the user enters the correct password through the password input module 206, the controller will drive the output shaft of the telescopic push rod 204 to shorten by a certain length, separating it from the locking hole 203, thus releasing the rotation limit on the lock cylinder 103. Then, the rotating wheel 201 can be rotated, thereby rotating the lock cylinder 103, the square shaft 104, the rotating disk 105, and the bolt 107 to open the door.

[0037] During the locking process, the lock cylinder 103 and square shaft 104 are rotated and reset by the key or the wheel 201, so that the locking hole 203 on the lock cylinder 103 corresponds to the output shaft of the telescopic push rod 204. After the key is removed, the pressure sensor detects the disappearance of the key, and the position sensor 207 detects that the lock cylinder 103 has reset to the position corresponding to the output shaft of the telescopic push rod 204. Then, the pressure sensor and the position sensor 207 will send a signal to the controller again. The controller will control the output shaft of the telescopic push rod 204 to extend a certain length and insert it into the locking hole 203 to limit the rotation of the lock cylinder 103, preventing others from arbitrarily rotating the wheel 201, lock cylinder 103, square shaft 104, rotating disk 105 and bolt 107, and then opening the door.

[0038] According to another embodiment of the present invention, such as Figure 4 , 5 As shown, the anti-return module includes an anti-return bolt 301 slidably connected to the rear cover 102, a shift finger 302 connected to the square shaft 104 on the rotating disk 105, and the ends of the anti-return bolt 301 and the shift finger 302 that are close to each other are arc-shaped. The rear cover 102 is provided with a first connecting post 303 close to the rotating disk 105 and a second connecting post 304 away from the rotating disk 105. The anti-return bolt 301 is provided with a connecting sliding hole 305 that is slidably sleeved on the outside of the first connecting post 303 and the second connecting post 304. The first connecting post 303 is provided with a limiting bolt 306 to prevent the anti-return bolt 301 from falling off. A connecting spring 307 is provided between the first connecting post 303 and the side of the connecting sliding hole 305 close to the rotating disk 105. During the upward rotation of the latch 107, the lever 302, and the rotating disk 105, the lever 302 drives the anti-return bolt 301 to slide. The connecting spring 307 is compressed. After the latch 107 rotates to a state of misalignment with the door frame, the lever 302 rotates from the lower side to the upper side of the anti-return bolt 301. The connecting spring 307 resets, causing the anti-return bolt 301 to reset as well, supporting the lever 302. This prevents the rotating disk 105 and the latch 107 from easily rotating independently, thus avoiding affecting the door opening status.

[0039] During the downward rotation of the latch 107, the lever 302, and the rotating disk 105, the lever 302 drives the anti-return bolt 301 to slide, and the connecting spring 307 is compressed. After the latch 107 rotates to the state of being engaged with the door frame, the lever 302 rotates from the upper side of the anti-return bolt 301 to the lower side of the anti-return bolt 301. The connecting spring 307 resets, drives the anti-return bolt 301 to reset, and limits the lever 302.

[0040] According to another embodiment of the present invention, such as Figure 4 As shown, a power module 401 is also provided on the back cover 102. The power module 401 is electrically connected to the first phase adapter, the second display screen 205, the controller and the telescopic push rod 204.

[0041] According to another embodiment of the present invention, such as Figure 1As shown, a second display screen 205 for displaying power status is also provided on the front cover 101. The second display screen 205 is electrically connected to the controller. To save power, a pressure switch or proximity switch can be installed on the second display screen 205, so that the second display screen 205 only lights up when someone approaches. The second display screen 205 can display the power status, allowing users to know the door lock's power level in a timely manner and avoid being unable to unlock due to insufficient power.

[0042] The above are preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A smart door lock with a display function, comprising a front cover (101) on one side of the door and a rear cover (102) on the other side of the door, characterized in that: The front cover (101) is provided with a lock cylinder (103) for inserting a key. A square shaft (104) is rotatably provided on the lock cylinder (103). The front cover (101) is also provided with a display intelligent unlocking module for driving the lock cylinder (103) to rotate. A rotating disk (105) connected to the square shaft (104) is rotatably provided on the rear cover (102). A rear rotating shaft (116) is provided at the rear end of the square shaft (104). A rotating plate (106) is provided on the rear rotating shaft (116). A lock tongue (107) is also provided on the rear side of the rotating disk (105). A check module for preventing the lock cylinder (103) from rotating on its own is also provided on the rear cover (102).

2. The smart door lock with display function as described in claim 1, characterized in that: The intelligent unlocking module includes a rotating wheel (201) rotatably mounted on the front cover (101) and connected to the lock cylinder (103). The front cover (101) is provided with a first display screen (202) capable of displaying an unlocking QR code. The front cover (101) is also provided with a communication module and a controller electrically connected to the first display screen (202). The side end of the lock cylinder (103) is provided with a locking hole (203). The front cover (101) is provided with a telescopic push rod (204) electrically connected to the controller. The output shaft of the telescopic push rod (204) can be inserted into the unlocking locking hole (203) and the locking locking hole (203). The lock cylinder (103) is also provided with a pressure sensor for sensing whether the key is inserted and electrically connected to the controller. The lock cylinder (103) is also provided with a position sensor (207) electrically connected to the controller.

3. The smart door lock with display function as described in claim 2, characterized in that: The intelligent unlocking module also includes a password input module (206) disposed on the front cover (101), and the password input module (206) is electrically connected to the controller.

4. The smart door lock with display function as described in claim 3, characterized in that: The anti-return module includes an anti-return bolt (301) slidably connected to the rear cover (102), a shift finger (302) connected to the square shaft (104) on the rotating disk (105), the ends of the anti-return bolt (301) and the shift finger (302) being close to each other are arc-shaped, the rear cover (102) is provided with a first connecting post (303) close to the rotating disk (105) and a second connecting post (304) away from the rotating disk (105), the anti-return bolt (301) is provided with a connecting sliding hole (305) slidably sleeved on the outside of the first connecting post (303) and the second connecting post (304), the first connecting post (303) is provided with a limiting bolt (306) to prevent the anti-return bolt (301) from falling off, and a connecting spring (307) is provided between the first connecting post (303) and the side of the connecting sliding hole (305) close to the rotating disk (105).

5. The smart door lock with display function as described in claim 4, characterized in that: The rear cover (102) is also provided with a power module (401), which is electrically connected to the first phase adapter, the second display screen (205), the controller and the telescopic push rod (204).

6. The smart door lock with display function as described in claim 5, characterized in that: The rear cover (102) is provided with a U-shaped pressure plate (110) through the first support cylinder (113), and the front cover (101) is also provided with a connecting bolt (111) that passes through the door and the U-shaped pressure plate (110). The U-shaped pressure plate (110) is provided with a connecting nut (112) that is screwed to the connecting bolt (111).

7. The smart door lock with display function as described in claim 6, characterized in that: The front cover (101) is also provided with a second display screen (205) for displaying the power status, and the second display screen (205) is electrically connected to the controller.

8. The smart door lock with display function as described in claim 7, characterized in that: The latch (107) is provided with a fixing bolt (114) that passes through the rotating plate (106) and is connected to the rotating disk (105).

9. The smart door lock with display function as described in claim 1, characterized in that: The rotating disk (105) is also provided with a fastening bolt (108) that passes through the rotating plate (106) and is threaded through the locking tongue (107). A fastening nut (115) that is threaded through the locking tongue (107) and is threaded through the fastening bolt (108) is provided on the outside of the locking tongue (107). A second support cylinder (109) that is sleeved on the outside of the fastening bolt (108) is provided between the rotating disk (105) and the rotating plate (106).

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